Question

2.4.PS-10 Question Help In a certain chemical, the ratio of zinc to copper is 4 to 17. A jar of the chemical contains 578 grams of copper. How many grams of zinc does it contain? It contains grams of zinc

Answer 1

we have the following ratio:

`(ZINC)/(COOPER)=(4)/(17)`

Now, we know that there are 578 gr of cooper. By substituting this values into our ratio, we have

`(ZINC)/(578)=(4)/(17)`

and we must isolate ZINC. This can be done by moving 578 to the right hand side:

`\begin{gathered} \text{ZINC}=578\cdot(4)/(17) \\ \text{ZINC}=(578\cdot4)/(17) \\ \text{ZINC}=(2312)/(17) \\ \text{ZINC =136} \end{gathered}`

that is, the jar contains 136 gr of zinc